Matsuya breakfasts are the best. So much better than Yoshinoya

So I started with this (page is in Chinese, but scroll down for English translation)
http://angelcookbakelove.blogspot.com/2011/11/sweet-sour-pork2111.html
but my marinade attempt was shit and the brand of ketchup I had wasn’t all that great. So I shelled out extra for some Heinz and added a bit more, and it worked like a charm.

Took awhile, but finally starting to figure out the right ratios so it doesn’t end up all watery and soggy